<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        let hero = new Object();
        hero.name = "剑豪";
        hero.age = 22;
        hero.address = "京城";
        hero.slogan = "解放全人类";

        for (let key in hero){
            console.log(key, hero[key]);
        }
        //联想数组遍历
    </script>
</body>
</html>